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CNCRouterParts pre-wired kit

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15 Jan 2014 13:10 #42802 by Jack000
anyone know the step time, step space, direction hold, direction setup parameters for this kit?
www.cncrouterparts.com/4-axis-plug-and-p...23-system-p-260.html

I used the default values for "other", and everything seemed fine until one of the pockets, where instead of pocketing at 1/4" it went all the way through the 3/4" material. Problem doesn't appear when jogging, but only during a cut. After the problem occurs, zero is at the correct location but actual z-height becomes about 3x displayed z-height.

I thought it might have been the pc, which had bad latency numbers. But with a new pc with less than 12000 ns the same thing happened. I now assume it's the step time etc that's the issue, but I'm not sure what numbers to use, or if that's even the issue.

any ideas?

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15 Jan 2014 13:53 #42805 by Rick G
Replied by Rick G on topic CNCRouterParts pre-wired kit
Looks like they come with a Mach XML file, you should be able to get the info there or ask John to convert it for you.

Rick G

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15 Jan 2014 16:27 #42811 by cncbasher
there the standard leadshine drives , so dir = 5000 and step 3500 should suit fine

check your z axis scale , and if it's still being a problem , try at a slower z feed rate and see if you get the same answer , you'll probably want slower max acceleration on the z

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15 Jan 2014 17:49 #42812 by Jack000
I did have a look at the xml file but it is pretty huge.. I'll try those numbers, thanks!

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